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10105297257 = 311306221129
BaseRepresentation
bin10010110100101001…
…01001100101101001
3222002020220021210210
421122110221211221
5131143424003012
64350423331333
7505263416016
oct113224514551
928066807723
1010105297257
1143161a4440
121b602b0b49
13c50767143
146bc13270d
153e225c23c
hex25a529969

10105297257 has 8 divisors (see below), whose sum is σ = 14698614240. Its totient is φ = 6124422560.

The previous prime is 10105297253. The next prime is 10105297303. The reversal of 10105297257 is 75279250101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10105297257 - 22 = 10105297253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10105297253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153110532 + ... + 153110597.

It is an arithmetic number, because the mean of its divisors is an integer number (1837326780).

Almost surely, 210105297257 is an apocalyptic number.

It is an amenable number.

10105297257 is a deficient number, since it is larger than the sum of its proper divisors (4593316983).

10105297257 is a wasteful number, since it uses less digits than its factorization.

10105297257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306221143.

The product of its (nonzero) digits is 44100, while the sum is 39.

The spelling of 10105297257 in words is "ten billion, one hundred five million, two hundred ninety-seven thousand, two hundred fifty-seven".

Divisors: 1 3 11 33 306221129 918663387 3368432419 10105297257